Distributed Databases Which of the following is true concerning a global transaction? The required data are at one local site and the distributed DBMS passes the request to only the local DBMS. The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS. The required data are at one local site and the distributed DBMS routes requests as necessary. The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary. The required data are at one local site and the distributed DBMS passes the request to only the local DBMS. The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS. The required data are at one local site and the distributed DBMS routes requests as necessary. The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary. ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases With failure transparency, all of the actions of a transaction are committed or none of them are committed. False True False True ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Databases that are stored on computers at multiple locations and are not interconnected by a network are known as distributed databases. False True False True ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases A distributed unit of work allows various statements within a unit of work to refer to multiple remote DBMS locations. False True False True ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Some of the columns of a relation are at different sites is which of the following? Horizontal and Vertical Partitioning Horizontal Partitioning Vertical Partitioning Data Replication Horizontal and Vertical Partitioning Horizontal Partitioning Vertical Partitioning Data Replication ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Replication should be used when which of the following exist? When transmission speeds and capacity in a network prohibit frequent refreshing of large tables. When using many nodes with different operating systems and DBMSs and database designs. All of these The application's data can be somewhat out-of-date. When transmission speeds and capacity in a network prohibit frequent refreshing of large tables. When using many nodes with different operating systems and DBMSs and database designs. All of these The application's data can be somewhat out-of-date. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS